ZIP Code 61604 is within two congressional districts: the 17th US Congressional District of Illinois currently represented by Democrat Eric Sorensen and the 16th US Congressional District of Illinois currently represented by Republican Darin LaHood.
ZIP Code 61604 is within two Illinois State House of Representatives districts: the Illinois State House of Representatives District 92 currently represented by Democrat Jehan Gordon-Booth. the Illinois State House of Representatives District 93 currently represented by . ZIP Code 61604 is within two Illinois State Senate districts: Illinois State Senate District 46 currently represented by Democrat David Koehler and Illinois State Senate District 47 currently represented by Republican Neil Anderson.